Hi Oharek!
If you talk about the knife lifting device inside the knife carrier, you don't have to take out the clamp.
Take out the knife! Okay so far the jokes.
Lower the clamp and switch off the machine. If the machine is in correct conditions the clamp stays down. In this position you can reach a lot of screws and mechanical components.
Switch the machine back on and use the foot pedal. The clamp will move upward.
Use the cut buttons and get the knife carrier to its BDC (most lower position). Switch the machine off. In this Situation clamp and knife carrier are lowered. Now you can reach other screws, etc.
Put the clutch handles into the fly wheel and crank the knife up. Get the clutch handles out, put the covers back on, make sure everything is save and switch the machine back on.
This is the game a service engineer has to play. Up and down and up and down until all parts are replaced. There is not a lot of space and you fight with the little pins, etc. The second time doing this job would be easier. This is the price you pay. But until than you forgot everything (okay - I would).
The last information is about the brake. The central shaft (for the Allan key) has on the rear side a cup washer and a flat washer which works like a brake shoe. This area has to be dry and without grease for sure. Otherwise the next knife change becomes a bit too fast.
In other words a good trained mechanic can do this job. The only problem is safety and safety and safety.
But there are alternatives. You may ask binderytech.com or Heidelberg for help.
Good luck
Coloured paper
Do I have to remove the clamp to be able to replace the knife lowering bolt. Ours is stripped out. Looks like I can get to the 6 screws holding the backing plate with the hangers with the clamp in but I hesitate. I don't know what I will run into. Looks like it would be real easy to get to everything if I removed clamp but I've never done that either.
